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參數(shù)資料
| 型號： | P1803ACRP |
| 英文描述： | SIDAC|210V V(BO) MAX|800MA I(S)|TO-220VAR |
| 中文描述： | SIDAC的|高達210V五（公報）最大| 800mA的我（縣）|對220VAR |
| 文件頁數(shù)： | 93/161頁 |
| 文件大?。?/td> | 986K |
| 代理商： | P1803ACRP |
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SIDACtor
Data Book
FCC PART 68
Teccor Electronics
(972) 580-7777
4 - 19
R
R
8%(4
Overview
FCC Part 68 applies to all terminal equipment that is connected to the public network
and is unique in the fact that it is mandated by U.S. law.
The purpose of FCC Part 68 is to provide a set of uniform standards that will protect
the telephone network from any damage or interference caused by the connection of
terminal equipment. The FCC standard includes environmental simulations such as
vibration tests, temperature and humidity cycling, drop tests and tests for hazardous
voltages and currents, as well as tests for signal power levels, line balance, on-hook
impedance, and billing protection; all of which must be met before and after the
environmental tests are applied.
Over-Voltage Test
FCC compliant equipment must undergo an over-voltage test that includes a Type A
and Type B Metallic Voltage Surge and a Type A and Type B Longitudinal Voltage
Surge. These surges are part of FCC's environmental simulation, and although there is
a provision which allows the EUT to reach an open circuit failure mode during the Type
A tests, failures must:
1. Arise from an intentional design which will cause the phone to be either
disconnected from the public network or repaired rapidly.
2. Be designed such that it is substantially apparent to the end user that the
terminal equipment is not operable. A common example of an acceptable
failure would be an open circuit due to an open connection on either Tip or
Ring.
For Type B surges, equipment protection circuitry is not allowed to fail. The EUT must
be designed to withstand Type B surges and continue to function in all operational
states.
Metallic Voltage Surge
The Type A and Type B Metallic Voltage Surges are applied in both the positive and
negative polarity across Tip and Ring during all operational states (on-hook, off-hook,
ringing, etc.). The Type A surge is an 800V, 100A peak surge while the Type B surge is
a 1000V, 25A peak surge (Table 4-16).
Longitudinal Voltage Surge
The Type A and Type B Longitudinal Voltage Surges are applied in both positive and
negative polarity during all operational states. The Type A surge is a 1500V, 200A
peak surge applied to the EUT with Tip and Ring tied together with respect to ground.
The Type B Longitudinal Voltage Surge is a simultaneous surge in which 1500V and
37.5A are applied to Tip with respect to ground and Ring with respect to ground
concurrently (Table 4-16).
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